OK, so we’re seven weeks into the new broadcast television season. It’s time to take stock. What’s working and what isn’t?

It should come as no surprise that the networks once again are struggling in a crowded environment. Each broadcaster has experienced a year-to-year overall ratings drop, some more than others.

It doesn’t help, of course, that, with cable and streaming shows included, there is an extraordinary onslaught of fresh programming for overwhelmed viewers to sift through.

It’s also safe to say that the contentious presidential election season has diverted some attention away from regular programming. Even ratings for the NFL — usually TV’s most reliable Nielsen juggernaut — are down.

Still, some shows, including “Bull,” “Designated Survivor” and “This Is Us,” have caught on with the public. Here’s a rundown of how the individual networks are faring so far (listed ratings include a combination of live and delayed viewing):

ABC

Viewers apparently just can’t get enough of Kiefer Sutherland. The former “24” star returned to prime time this fall in the political thriller “Designated Survivor,” which has been pulling in about 15 million viewers a week. The show took a bit of a ratings hit against the World Series, but still, Kiefer is a keeper.

Other positive performers for ABC include the sitcom “Speechless” and “American Housewife,” which both rank among the Top 10 new shows.

But not all is well at ABC. “Conviction” and “Notorious,” both dreadfully lousy dramas, have failed to build much traction. Last week, “Notorious” had its episode order cut from 13 to 10. That’s not an official death notice, but it’s usually a harbinger of one.

Despite drawing terrible reviews, the legal series is fall’s most-watched new show with an average of 17.6 million viewers. That speaks to the star power of Michael Weatherly and the show’s post-“NCIS” time slot.

Want more? “Kevin Can Wait,” a broad comedy starring sitcom retread Kevin James, was slammed even harder by reviewers than “Bull” (It had a Metacritic score of 39), but it ranks as TV’s No. 1 sitcom with 11.8 million viewers. Incredible.

And then there’s “MacGyver,” a remake of a moldy old show. Despite an unfavorable Friday-night time slot, it’s drawing a little more than 10 million viewers per episode.

Three CBS shows — Matt LeBlanc’s “Man With a Plan,” Joel McHale’s “The Great Outdoors” and the medical drama “Pure Genius — all debuted last week, so it’s still too early to judge their staying power. Then again, none of those shows was blessed with glowing reviews, so it’s possible they could be on the air for years to come.

NBC

Funny how TV works sometimes. “Parenthood” was a heartfelt NBC family drama, but never a ratings powerhouse. Now, along comes “This Is Us,” a heartfelt family drama that has been widely compared to “Parenthood,” and it’s one of fall’s biggest hits.

The multigenerational saga has been drawing an average of 13.9 million viewers per episode to rank third among all new series. Even more impressive: It’s No. 1 among viewers aged 18 to 49, the demographic most coveted by advertisers.

“This Is Us” has been called a “surprise hit.” But its promotional trailer had more than 50 million views in the first 11 days it was on social media, so perhaps we should have seen this coming.

NBC also has experienced modest success with the drama “Timeless” and afterlife sitcom “The Good Place.” The latter show has drawn generally favorable reviews from critics.

Fox

Apparently remakes sometimes do work. “Lethal Weapon,” a drama inspired by the 1987 buddy-cop film, is luring nearly nine million viewers per episode and has been rewarded with a full-season order.

Otherwise, it has been a rocky fall for Fox. Another remake — “The Exorcist” — is struggling mightily on Fridays. Also, the baseball drama “Pitch” and the hybrid comedy “Son of Zorn” aren’t doing much better.

The CW

The CW has only two new shows this fall — “No tomorrow” and “Frequency.” Neither one has attracted a sizable audience.

That doesn’t mean they’re automatic goners, though. The CW, sometimes patient to a fault, has been known to ride modestly rated shows for a while (ie: “Crazy Ex-Girlfriend”).

Contact Chuck Barney at cbarney@bayareanewsgroup.com. Follow him at Twitter.com/chuckbarney and Facebook.com/bayareanewsgroup.chuckbarney.

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